Feed-water heater.



2 SHEETS-SHEET 1.

PATENTED MAY 3, 1904.

A. J. SWEET. FEED WATER HEATER. APPLICATION FILED MAY 4, 190a WITNESSESPATENTED MAY 3. 1904.

A. J. SWEET. FEED WATER HEATER. APPLICATION FILED MAY 4, 1003.

2 SHEETS-SHEET 2.

N0 MODEL.

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No. 758,718. Patented May 3, 1904.

NITED STATES PATENT OFFICE.

ARTHUR J. SIVFET, OF ANN ARBOR, MICHIGAN, ASSIGNOR OF ONE 'lHlRD TO GEO.IV. SWEET AND SIDNEY SMITH, OF ANN ARBOR, MICHIGAN.

FEED-WATE R HEATER.

SPECIFICATION forming part of Letters Patent No. 758,718, dated May 3,1904. Application filed May 4, 1903. Serial No. 155,474. lilo modem Tll/7mm it W 6071106771! tuous channel, along which the water travels Beit known that I, ARTHUR J. Swen'na citislowly and along which itdeposits deleterious zen of the United States, residing at Ann Armatteror matter injurious to the boiler and bor, county of \\"ashtenaw, Stateof Michigan, which will deposit from highly-heated water 5 have inventeda certain new and useful Imthat is at rest or moving only slowly. In theprovement in Feed-\Vater Heaters, and I deform shown in Fig. 1 thetortuous channel is clare the following to be a full, clear, and exacoil of pipe with horizontal sections a, I), act description of theinvention, such as will 0, (Land 0, joined by suitable bends or elbows,enable others skilled in the artto which it perand in the elbows areinserted plugs p q,

10 tains to make and use the same, reference bewhich may be removed, andaccess may be had ing had to the accompanying drawings, which throughthe openings to the interior of the form a part of this specification.pipes to clean them out. Below the coil is a (his invention relates tofeed-water heaters, tank T, provided with a manhole t and with a and hasfor its object an improved feed-water yoke K and screws to hold themanhole-cover I 5 heater intended to be used to utilize the heat R inplace. In the form shown in Figs. I and of exhaust-steam for the purposeof heating 5 a tank with battle-plates is substituted for 6 5 water tobe used in a boiler. the coil. The baffle-plates A, G, IE, and Gr are Inthe drawings, Figure 1 shows the heater secured to the back and theplates B, I), and F used with a coil. Fig. 2. is a sectional view, tothe front of the tank, and the entire front,

2 on an enlarged plan, of the upper part of the carrying plates B, D,and F, is removable in heater. Fig. 3 is a detail of the nozzle used.order that the structure may be cleaned. 7 Fig. I shows a box form ofstructure employ- In the form shown in Figs. I and 5 the waing the sameinvention. Fig. 5 is a crossl ter-tank may be at the bottom of the box.section of the device shown in Fig. 4:. Fig. 6 Both forms may be securedto the vall of a 5 is a plan view of the nozzle. building in a way tooccupy but little valuable The heater consists, in substance, of aconspace. ducto r for water and a means for mingling the In operation aet of water is thrown through exhaust-steam of an engine with the waterin the nozzle 7 from a source of supply that conthe conductor, afterwhich the water is carnects with water-pipes 6. This is thrown 30 riedthrough a tortuous channel in which it across the end of the pipe 3 intothe extension deposits sediment and limey materials, and it 8 and dropsdown to the channel below the 30 is linally received in a tank fromwhich it is pipe 3. In dropping, the water that has been introduced tothe boiler by any approved thrown into the channel carries down the airmeans. i with it, producing a suction or partial vacuum 3 5 2 indicatesthe exhaust-pipe of an engine and a consequentinilow of steam from theexthrough which steam is escaping to the open haust-pipeQinto theheater. The water thrown 5 air. through the nozzle is preferably in aline spray 3 indicates a vertical pipe connected to the or in a dividedstate in a condition to be exhaust-pipe 2 by cross-pipe 4:, which may bequickly and easily heated by the heat of the J 4 provided withhand-valve 5 or may be left exhaust-steam, and it takes up a largevolume without such hand-valve. Into the pipe 3, of heat from theexhaust-steam. At the same 9 below the junction of the cross-pipe I, isintime it produces a draft or an entire absence serted the end of awater-pipe 6. The teri of back pressure on the exhaust-pipe and aidsminal' of, the water-pipe 6 within the pipe 3 instead of obstructing theengine in its work.

4 5 reaches upward to nearly the end of the cross- \Vhat I claim ispipeI and is provided with a rose or spray- 1. In a feed-water heater, incombination nozzle T. Below the spray-nozzle T the pipe with theexhaust-pipe of an engine, a chamber,

" 3 leads toa depositchamber, and this depositi a spray-pipe leadingfrom below and directed chamber may be any long and preferably-torlupward into said chamber, a connection from the exhaust to the chamberwhereby the spray is utilized to produce a draft'from the exhaustpipe,substantially as described.

2. In combination with the exhaust-pipe of an engine, a spray-chamber, aspray-pipe leading from below thereinto and directed upward across asteam-inlet, a pipe connecting the exhaust-pipe with the spray-chamberand providing said steam-inlet,

haust-pipe, substantially as described.

heater, in combination In a feed-water with the exhaust-pipe of anengine, a spray chamber, a spray-pipe leading therelnto, a

emerging from the spray-chamber, and means for cleaning the tortuouschamber, substantially as described.

In testimony whereof I sign this specification in the presence of twoWitnesses.

ARTHUR J. SWEET l/Vitnesses:

PHILIP BLUM, MABEL E. BLUM.

